Hi! I have a TV, Samsung ue49ku6100kxxu, no boot, when connect the power cord, standby led and the backlight up and down repeated. When i disconnect the MB, the backlight is up.
I take some measurement and all ok. I have already try tape method and same happen, if I disconnect both flex from mainboard to panel tv same happened. This is a software error?
I have an IC programmer: CH341A
MB model: BN41-02528
MB code: BN41-02528A
on the glued label: BN94-10826K
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04-26-2024, 12:24 AM
-
Hi I need to patch my Lenovo t495 to remove the supervisor password .
I cannot use the autopatcher because the t495 is not Intel but a Ryzen.
I make a dump of original firmware and now I ask your help to patch it.
Please can you help me?
board code: FA495 NM C131 REV. 1.0...Today, 04:56 AM -
Everything works as it should except that it is too dark screen image and the backlight is blue is it normal with bleu backlight ?
What Can I Do To Get Brighter Image...04-27-2024, 06:42 PM -
Dear forum, I would like to ask some help identifying the backlight circuits resistors to limit the ampere to the backlight leds.
The power supply is a BN44-00852 and I want to decrease the backlight to increase the lifetime of the LEDs.
The TV is pretty much always on, used for CCTV cameras.
I suspecting R9838 -> R9841 resistors but I'm not sure. Thanks in advance!
[ATTACH=JSON]{"data-align":"none","data-size":"large","title":"samsung_bn44-00852_psu_sch_full.png","data-attachment...Today, 04:49 AM -
Anyone know moatherboard ruf the blacklight fuse ? Where they are ? Is an AMD Ryzer 5 i spend couple of hours to fiind it and still not fiind nothing....the problem is once i connect the afaptor i have image but not blacklight..when i remove the adaptor and stay on battery i not have at all image...and i thing so is the fuse problem04-26-2024, 08:29 AM
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Hi everyone. An HP X2 1012 G2 came the other day. The problem was that the device drained the battery while off. I checked and saw the current is 0.2 before start. I went and checked parts on the MB and saw that the JHL6340 IC that is responsible for controlling Type-C gets hot. Everything worked fine and I checked charging and data of type-C both were OK. I went ahead and replaced the JHL6340. Now it does not get hot, no current before start, charging is OK, but the data of type-c is lost. I mean any type-c device like flash memory or hdmi adapter etc. do not work. I tried another jhl6340 and...Today, 03:34 AM
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Hi,
Panasonic FZ-M1. Asks for password on boot.
This is Haswell so old trick with AMITSESetup doesn't work.
From sticker:
Model: FZ-M1CCAACE3 ( = mk1)
Serial: 6ETCA72551
PCB: DFUP2291ZF FJ-TH7...Today, 03:41 AM -
Hi everyone, I wanted to kindly ask you for help, I have a problem with my Dell vegas/turis mlk kbl-r 17841-1 wx2rr PC, it turned off and I was no longer able to turn it back on, I'm checking the various voltages, unfortunately I found the 19 v up to the input components PU4411, PQ4401, thank you all for any advice
[ATTACH=JSON]{"alt":"Click image for larger version Name:\tIMG_20240424_111713072.jpg Views:\t0 Size:\t855.7 KB ID:\t3258866","data-align":"none","data-attachmentid":"3258866","data-size":"custom","height":"843","title":"IMG_20240424_111713072.jpg","width":"1124"}[/ATTACH]...04-24-2024, 03:48 AM -
have been looking at earth leakage clamp meters and its like a minefield out there . i wondered if anyone here had bought one that actually works properly ?...04-17-2024, 01:31 PM
-
I have an Lenovo l340 that has two missing caps on the motherboard. How can I find the value of the caps so I can replace them.
thank you in advance.Today, 01:49 AM
-
Hi everyone. An HP X2 1012 G2 came the other day. The problem was that the device drained the battery while off. I checked and saw the current is 0.2 before start. I went and checked parts on the MB and saw that the JHL6340 IC that is responsible for controlling Type-C gets hot. Everything worked fine and I checked charging and data of type-C both were OK. I went ahead and replaced the JHL6340. Now it does not get hot, no current before start, charging is OK, but the data of type-c is lost. I mean any type-c device like flash memory or hdmi adapter etc. do not work. I tried another jhl6340 and...Today, 03:34 AM
-
Hi,
Panasonic FZ-M1. Asks for password on boot.
This is Haswell so old trick with AMITSESetup doesn't work.
From sticker:
Model: FZ-M1CCAACE3 ( = mk1)
Serial: 6ETCA72551
PCB: DFUP2291ZF FJ-TH7...Today, 03:41 AM -
I have an Lenovo l340 that has two missing caps on the motherboard. How can I find the value of the caps so I can replace them.
thank you in advance.Today, 01:49 AM -
Hi I need to patch my Lenovo t495 to remove the supervisor password .
I cannot use the autopatcher because the t495 is not Intel but a Ryzen.
I make a dump of original firmware and now I ask your help to patch it.
Please can you help me?
board code: FA495 NM C131 REV. 1.0...Today, 04:56 AM -
Dear forum, I would like to ask some help identifying the backlight circuits resistors to limit the ampere to the backlight leds.
The power supply is a BN44-00852 and I want to decrease the backlight to increase the lifetime of the LEDs.
The TV is pretty much always on, used for CCTV cameras.
I suspecting R9838 -> R9841 resistors but I'm not sure. Thanks in advance!
[ATTACH=JSON]{"data-align":"none","data-size":"large","title":"samsung_bn44-00852_psu_sch_full.png","data-attachment...Today, 04:49 AM -
Hi!
I'm looking for the Boardfile for the HuaQin NB2672 PCBA (Acer Swift 3X S3X SF314-510G), specifically the Allegro .brd of it and not the .cad.
Attached the schematic of it in case anyone needs that.
Cheers,...Today, 03:26 AM -
Hi, I'm asking for help identifying the component.. the markings on the smd are totally destroyed and boardview didn't help me much.. I didn't find the schematic ....Thanks!Yesterday, 04:39 AM
-
Everything works as it should except that it is too dark screen image and the backlight is blue is it normal with bleu backlight ?
What Can I Do To Get Brighter Image...04-27-2024, 06:42 PM -
Hi all,
I'm facing a issue... hope you could help me. I have a T-CON board BN41-02112A from Samsung 55inch Curve TV.
I have just only 2 status blue LEDs ON since LED3 is off. I have tried to test some test points but VON is NOT OK very close to 0V. Is there someone that can help me on the debugging the issue? I'm supplying the board from an external 12V voltage source.
Thank you in advance.
BR,
Michele
[ATTACH=JSON]{"data-align":"none","data-size":"full","data-attachmentid":3259938}[/ATTACH]...04-25-2024, 12:37 PM -
Please help sir, I included a schematic of the T490 nm-b901 completely dead, after I checked, I lost the voltage -PWRSHUTDOWN 0v which should have been 3.3v, which was produced by the BD4179MWV chip, thank you
F9502 20v
UTE1B
pin 44 TE_BAT_VOLT 12v
oin 43 3SW_OFF# 19.8v
pin 45 VREGIN20 19.8v
pin 47 VCC3SW 3.3v
pin 55 SHUTDOWNIN# 3.3v
pin 54 TH_DTCT 3.3v
-PWRSHUTDOWN missing 0v resistance 380k
R9512 pin 2 3.3v pin 1 0v resistance 380k
[url]https://www.badcaps.net/forum/troubleshooting-hardware-devices-and-el...Yesterday, 08:25 AM